Conveyer.



No. 764,012. PATENTED JULY 5, 1904. M. G. SCHWAB.

K CONVBYER.

APPLICATION FILED SEPT. 30, 1903.

N0 MODEL. 2 SHEETS-SHEET 2.

Wzesses A [72 Uenir.

M mfa Patented July 5, 1904.

EEicE.

MARTIN (3. SCHWAB, OF BALTIMORE, MARYLAND.

CONVEYER.

SPECIFICATION forming part of Letters Patent No. 764,012, dated July 5, 1904.

Application led September 30, 1903. Serial No. 175,135. (No model.)

To all whom t may concern:

Be it known that I, MARTIN C. SCHWAB, a citizen of the United States, residing at Baltimore, State of Maryland, have invented certain new and usefulImprovements in Conveyers, of which the following is a specification.

This invention relates to improvements in spiral conveyers adapted for use in buildings or stores for conveying packages by gravity from the various iioors downward.

The object of the invention is to provide improvements in this class of conveyers, as hereinafter set forth, and particularly pointed out in the appended claims.

The invention is illustrated in the accompanying drawings, in which- Figure l is a vertical sectional view of a conveyer constructed according to my invention extending through several floors of a building. Figs. 2, 3, 4, and 5 are horizontal sectional views taken approximately on the lines 2 2, 3 3, 4 4, and 5 5, respectively, of Fig. 1.

In the accompanying drawings the invention is illustrated as installed in a building having four floors. The lower or ground iioor A represents the shipping department, and the upper floors are designated, respectively, B, C, and D. It is to be understood that this conveyer may be installed in a building having any number of iioors and may be located in any convenient place in a building consistont with the architectural plan thereof.

In' the present instance the conveyer comprisesa plural number of tubes concentrically arranged one within the other. The outer tube or shell a extends from the lower floor or shipping d epartment to the next floor above. A spiral chute a is secured within this shell a, and said chute extends from the second floor B down to the shipping' department. An opening a2 in the shell o and near the Lipper ond of the chute gives access or communication to said chute, and a discharge-opening a3 is provided in said shell at its lower end, through which the packages pass to discharge onto a platform A in the shipping department. It will thus be seen that a package upon being placed on the chute e at the second iioor B will be conveyed down the outer spiral around the shell a, and discharge through the opening a3. A tube or shell extends vertically through theouter shell a, and said tube is longer or higher than the shell a and extends to the third floor C, being the iioor next abovel that at which the tube w terminates. This second tube or shell is also provided with a spiral chute 7J', which latter extends from the third floor C down to the lower floor or shippingdepartment. An opening b2 is provided in the shell at the third Hoor C and' communicates with the chute and permits the deposition of packages on said chute.,

lThe second chute o' at its lower end passes through an opening in the shell b and also extends through the outer shell a and terminates on the platform A'. It will be apparent that a package deposited on the second chute will not interfere with anything on the iirst chute and will be conveyed to the lower iioor or shipping department A- and deposited on the platform A. An inner tube or third shell c extends vertically through the second shell b, and its upper end terminates above the fourth floor D. This tube is also provided with a spiral chute c', which extends from the fourth floor y down to the shipping department A, where its lower end terminates. In the present instance a tube or core E extends vertically through the center of the shell c, and the inner chute c Winds spirally around said core. An opening' c2 is provided in the shell c at the fourth Hoor D, through which packages may be placed on said chute c. At its lower end the chute c' passes through the wall of the shell c and also through the shells L and a, and said chute c', like the chutes a and b', terminates on the same platform A in the shipping department. It will thus be seen that the several-independent spiral chutes from the various ioors all terminate at the same platform A. The exteriorsurfaces of the shells on the several floors are preferably inclosed in plaster or other suitable jacket e.

The operation is obvious.

It is obvious that the invention is not limited to a device for conveying packages, but

may be employed to convey anything from an lOO what I claim as new, and desire to secure by Letters Patent, isF

l. A conveyer for transmitting packages from one floor to another of a building, comprising a plurality of spirals, one concentric with respect to the other, and one end of each spiral starting from a different licor and the otherl ends of all of said spirals terminating at the same floor.

2. A conveyer for transmitting packages from one floor to another of a building, comprising a plurality of spirals of different diameters one around the other, one of the Iends or' each of said spirals starting from a different floor and the other ends of all of said spirals terminating at the same floor.

3. A conveyer for transmitting' packages from one floor to another of a building, comprising a plurality of spirals concentrically arranged one within another and each of the inner spirals extending from a higher point than the outer adjoining one next surrounding it.

4. A eonveyer for transmitting packages from one loor to another of a building com prising a plurality of spirals of different diameters, the spiral having the smallest diameter connecting the highest and lowest loors that are in communication with the conveyer, and the spiral having the largest diameter con* necting the lower floors that are in communication with the conveyor.

5. A conveyor for transmitting packages from one lloor to another ol a building, coniprising a plurality of tubes or shells concentrically arranged, the upper ends of said tubes each starting from a different iioor and the lower ends of all of said tubes terminating' at the same floor, and a spiral chute in the concentric space formed by each of said tubes.

6. A conveyer for transmitting packages from one floor to another of a building, comprising a plurality of tubes of different diameters and different lengths and one within the other, and a spiral chute in each of said tubes.

7. A conveyer for transmitting packages from one floor to another of a building, comprising a plurality of tubes of different diameters concentrically one within the other, aspiral chute in the space between each two adjoining tubes and all of said chutes discharging through the wall of tbe tube of the largest diameter.

8. A gravity-conveyer for establishing communication between the various floors of a building having' a plurality of spiral chutes o different diameters and lengths and each of said spirals occupying a dil'erent circular plane.

1n testimony whereo'tl I aiiix my signature in the presence of two witnesses.

MARTIN C. SCHWAB. Vitnesses:

Cri/xs. B. MANN, G. FERDINAND VoGT. 

